body{
	padding: 0px;
	margin: 0px;
}
fieldset{
	margin: 10px auto;//居中块状元素
	width: 80%;
	height: 65px;
	border-radius: 15px;
	label{
		position: relative;
		width: 50px;
		height: 50px;
		display: inline-block;
		span{
			display: block;
			text-align: center;
			line-height: 50px;
			border-radius: 50%;
			border: 1px solid #16324a;
			cursor: pointer;
		}
		input{
			position: absolute;//设置为绝对布局，不会影响文档流
			width: 100%;
			height: 100%;
			opacity: 0;//设置为透明
		}
		.selected{
			background-color: #16324a;
			color:white;
		}
	}
	select{
		appearance:none;
		-webkit-appearance:none;
		-moz-appearance:none;
		background-color: #fff;
		line-height: 25px;
		padding: 0 30px;
		font-size: .75rem;
		letter-spacing: 10px;
		outline: none;
		box-sizing: border-box;
		cursor: pointer;
	}
}
#aqi-chart-wrap{
	width: 80%;
	display: inline-block;
	margin: 10px 135px;//内联样式不能应用margin选项
	box-shadow:0px 0px 5px #999999;
	border-radius: 15px;
	//overflow: hidden;
	position: relative;
}
